| Impact ID | 7737 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | In a laboratory setting, ruffe(Gymnocephalus cernua) exhibited higher consumption rates of benthic invertebrates in darkness over bare cobble and complex substrates than did yellow(Perca flavescens). |
| Reference | 14421 |
| Cost | |
| Location | |